Leflunomide

1. Anti-inflammatory effect: Leflunomide can inhibit the inflammatory response and reduce joint pain, swelling and stiffness in patients with arthritis.
2. Immunomodulatory effect: Leflunomide can regulate the function of the immune system and reduce the immune system's attack on one's own tissues.
3. Relieve symptoms: Leflunomide can relieve pain, swelling and dysfunction in patients with arthritis and improve their quality of life.
4. Long-term treatment: Leflunomide usually requires long-term use to achieve optimal efficacy. Continuous use can help control the symptoms of the disease and reduce the risk of recurrence.

Leflunomide is a drug used to treat rheumatoid arthritis and other autoimmune diseases.